#include "uv.h"
#include "node.h"
#include "env.h"
#include "env-inl.h"

namespace node {
namespace uv {

    using v8::Context;
    using v8::FunctionCallbackInfo;
    using v8::Integer;
    using v8::Local;
    using v8::Object;
    using v8::Value;

    void ErrName(const FunctionCallbackInfo<Value>& args)
    {
        Environment* env = Environment::GetCurrent(args);
        int err = args[0]->Int32Value();
        if (err >= 0)
            return env->ThrowError("err >= 0");
        const char* name = uv_err_name(err);
        args.GetReturnValue().Set(OneByteString(env->isolate(), name));
    }

    void Initialize(Local<Object> target,
        Local<Value> unused,
        Local<Context> context)
    {
        Environment* env = Environment::GetCurrent(context);
        target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "errname"),
            env->NewFunctionTemplate(ErrName)->GetFunction());
#define V(name, _)                                                  \
    target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "UV_" #name), \
        Integer::New(env->isolate(), UV_##name));
        UV_ERRNO_MAP(V)
#undef V
    }

} // namespace uv
} // namespace node

NODE_MODULE_CONTEXT_AWARE_BUILTIN(uv, node::uv::Initialize)
